Sick of jargon? We like to keep things simple.

ABC | DEF | GHI | JKL | MNO | PQR | STU | VWXYZ

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P: PHP | Png | POP3/POP Account | Pop Up | Pull Down Menu

Q:

R: Redirect

PHP
Self-referentially short for PHP: Hypertext Preprocessor, an open source, server-side, HTML embedded scripting language used to create dynamic Web pages.

In an HTML document, PHP script (similar syntax to that of Perl or C ) is enclosed within special PHP tags. Because PHP is embedded within tags, the author can jump between HTML and PHP (similar to ASP and Cold Fusion) instead of having to rely on heavy amounts of code to output HTML. And, because PHP is executed on the server, the client cannot view the PHP code.

PHP can perform any task that any CGI program can do, but its strength lies in its compatibility with many types of databases. Also, PHP can talk across networks using IMAP, SNMP, NNTP, POP3, or HTTP.

PHP was created sometime in 1994 by Rasmus Lerdorf. During mid 1997, PHP development entered the hands of other contributors. Two of them, Zeev Suraski and Andi Gutmans, rewrote the parser from scratch to create PHP version 3 (PHP3).

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Png
Short for Portable Network Graphics, and pronounced ping, a new bit-mapped graphics format similar to GIF. In fact, PNG was approved as a standard by the World Wide Web consortium to replace GIF because GIF uses a patented data compression algorithm called LZW. In contrast, PNG is completely patent- and license-free. The most recent versions of Netscape Navigator and Microsoft Internet Explorer now support PNG.

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POP3/ POP account
(1) Short for Post Office Protocol, a protocol used to retrieve e-mail from a mail server. Most e-mail applications (sometimes called an e-mail client) use the POP protocol, although some can use the newer IMAP (Internet Message Access Protocol).

There are two versions of POP. The first, called POP2, became a standard in the mid-80's and requires SMTP to send messages. The newer version, POP3, can be used with or without SMTP.

(2) Short for point of presence, an access point to the Internet. ISPs have typically multiple POPs. A point of presence is a physical location, either part of the facilities of a telecommunications provider that the ISP rents or a separate location from the telecommunications provider, that houses servers, routers, ATM switches and digital/analog call aggregators.

(3) Short for Programmed Operator (POP), a pseudo-opcode in a virtual machine language executed by an interpretive program. The Programmed Operator instructions provide the ability to define an instruction set for efficient encoding by calling subprograms into primary memory.

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Pop Up
A window that suddenly appears (pops up) when you select an option with a mouse or press a special function key. Usually, the pop-up window contains a menu of commands and stays on the screen only until you select one of the commands. It then disappears.
A special kind of pop-up window is a pull-down or drop down menu, which appears just below the item you selected, as if you had pulled it down.

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Pull Down Menu
(n.) Also called a drop-down menu, a menu of commands or options that appears when you select an item with a mouse. The item you select is generally at the top of the display screen, and the menu appears just below it, as if you had pulled it down.

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Redirect
(1) In e-mail, a redirect is an option found in e-mail clients that is similar to a forward, with the exception that the body of the text is not normally shown as quoted text. Additionally the From (or) Sender field will show the e-mail address of the original sender, and in brackets it will show your information. For example if you received the e-mail from "me@me.com" and your e-mail address is "thisisme@me.com", when you redirect this e-mail to another recipient, the From (or) Sender information might read something like this:
From: me@me.com ( by way of "Your Name" <thisisme@me.com> )
(2) Redirect also refers to a Web server function where an old URL can be redirected to a new one. There are a series of redirect HTTP response codes that a server can return, including the following:

• 301: (permanent) Returns a permanent redirect status indicating that the resource has moved permanently.
• 302: (temp) Returns a temporary redirect status. This is the default.
• 303: (seeother) Returns a "See Other" status indicating that the resource has been replaced.
• 410: (gone) Indicates that the resource has been replaced.

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